BIO_s_socket, BIO_new_socket - Socket BIO
BIO_METHOD * BIO_s_socket(
void ); #define
#define BIO_get_fd(b,c) BIO_ctrl(b,BIO_C_GET_FD,0,(char
int close_flag );
The BIO_s_socket() function returns the socket BIO method.
This is a wrapper around the platform's socket routines.
BIO_read() and BIO_write() read or write the underlying
socket. BIO_puts() is supported, but BIO_gets() is not.
If the close flag is set then the socket is shut down and
closed when the BIO is freed.
BIO_set_fd() sets the socket of BIO b to fd and the close
flag to c.
BIO_get_fd() places the socket in c if it is not NULL, it
also returns the socket . If c is not NULL it should be of
type (int *).
BIO_new_socket() returns a socket BIO using sock and
Socket BIOs also support any relevant functionality of
file descriptor BIOs.
The reason for having separate file descriptor and socket
BIOs is that on some platforms sockets are not file
descriptors and use distinct I/O routines, Windows is one
such platform. Any code mixing the two will not work on
BIO_s_socket() returns the socket BIO method.
BIO_set_fd() always returns 1.
BIO_get_fd() returns the socket or -1 if the BIO has not
BIO_new_socket() returns the newly allocated BIO or NULL
is an error occurred.
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